The silver key

This is a story I made out of boredom and to deal with my ADHD so expect the quality to not be the best, also english is not my first language so yeah, anyway onto the description (which i suck at btw).

One day abigail wakes up in the side of a road with a concerned girl named ifrit looking over her, the problem? she doesnt remember anything nor does she have anything with her that might help, nothing execpt a single silver key hanging from a small chain around her neck, she doesnt remember what the key is for but she has the feeling that the key is even more important that her life.